Stovepipe-joint.



PATENTED JUNE 11, 1907.

W. S. BIGKEL.

STOVBPIPE JOINT.

APPLIUATION FILED 1113.19, 1907.

wmmm

UNITED sTATEs PATENT oEEIoE Specification of Letters Patent.

Patented June 11, 1907.

Application 'led February 19. 1907. Serial No. 358.198.

.To all whom zit may concern:

Be yit known that I, WINFIELD Sco'r'r BICKEL, a citizen of the United` States, residing `at Sliryock, in the county of Greenbrier and State of Vest Virginia, have invented new` and useful Im rovements in Stovepi e-Joints, of which t e following is a spec cation.

This invention relates to a. stove pipe or other joint of that type in which two adjacent sections are connected together by the en'd of one section telesco ing 1n an annular pocket formed at the a( jacent end of the other section.

The invention has for one of its objects to provide a pi e joint which is of simple, inexpensive an durable construction whereby the pipe sections can be firmly and easily secured together.

A further object of the invention is to provide a pipe joint in which one section is 'formed with an annular pocket for receiving the adjacent end of the juxtaposed section.

lWit these objects in view and others, as will appear as the description proceeds, the invention comprises the various novel features of construction and arrangement of arts which will be. more fully described hereinafter and set forth with particularity in the claims appended hereto.

In the accompanying drawing, which illustrates one of the embodiments of the invention, Figure 1 is a'central longitudinal section of a stove pipe joint. Fig. 2 is a similar view of a modified form of joint. Fig. 3 is a transverse section on line 3-3, Fig. 1. Fig. 4 is a central section of the pocketed end of one of the pi e sections.

Similar re erence characters are employed to designate similar parts throughout the several iigures of the drawings.

Referring to the drawing, 1 and 2 designate 'two sections of a stove, furnace or other pipe that are made of sheet metal pieces and bent c lindrical in a suitable metal working mac ine and connected at their meeting longitudinal edges by seams 3 in the usual manner. Each section has one end formed into an internal annular pocket 4 for receiving the adjacent end of a juxtaposed section. The pocket 4 is made by bending a portion of the pipe backwardiy and inwardly against the ody of the pipe and then outwardly. In other words, the pocket 4 is a double re entrant` portion of the pipe section.

The outer ring 5 is turned snugly back against the internal surface of thc pipe and the inner ring 6 is slightly spaced from the. ring 5 to form a pocket 4. 'lhe ring 6 is of such a length as to project beyond the bend 7 so as to extend into the section of the pipe that its into the pocket 4, thereby allording a substantially internal support for the said section. In order to facilitate the insertion of the pipe section into the pocket 4, the inner ring 6 is provided with a plurality ol' longitudinally extending slits 8, thereby iinparting resiliency to the ring and increasing the grip on the surrounding section. The end of the section 1 that fits into the pocket is inserted the full depth of the latter so as to bear against the bend 9. To increase the hold of the ring 6, the extending portion thereof may be crimped as indicated at 10,

Fig. 2.

n Vorder to accommodate the seam 3 of the telescoping end of the section 1, the re-entrant portion of rings 5 and 6 of the section 2 is cut away at 11, said cut-away portion being at the meeting edges of seam 3 of the section 2. By this construction, the seams 3 of the sections 'will coincide, as shown in Fi'g. 3. Since the seam 3 of the section 1 enters the recesses produced by cutting away the rings at 11, it is obvious that the sections are locked together against relative turning movement.

In a pipe joint of the character described, no connecting means in the nature of couplings are necessary as the pockets are integral parts of the pipe sections. The joint, therefore, consists ofa minimum of parts so arranged that a stong, durable and simple joint is produced.

Having thus described the invention, what I claim is 1. A pipe joint comprising two seamed sections, one section being bent into an internal re-entrant annular pocket into which the adjacent end of the other section telescopes, said pocket having its walls recessed in a direction longitudinally of the section for receiving the seam of the other section. i

2. A pipe joint comprising a pair of sections and having longitudinal seams, one section being bent to form an internal annu- `larre-entrant pocket having its inner part extending beyond the bend connecting the re-entrant ortion with the body of the section and a so having a plurality of longitu- IOO -IIO

dinelly extending slits forI frictionlly enthe pocket being recessed to" receive the gaging the other section extending into the seam of the adjacent section. ro pocket, said pocket having Aa tapered recess In testimony whereof, I afix my signature to -receive the seam of the adjacent section. in presence of two witnesses.

5 3. A pipei'oint comprising a. pair of sec- A WINFIELD SCOTT BICKEL. tions having ongitudinal seams, one section Witnesses: having an internal` annular pocket for re- L. FRED. MOODY,

N ceiving the adjacent end of the other section, D. B. RAPP. 

